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register.py
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register.py
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import wiringpi
import inquirer
import sys
import time
###
INPUT = 0
OUTPUT = 1
CUSTOM_DATA = []
##EEPROM
# Active Low 👇
E_WE = 30
E_OE = 21
E_DATA = [6, 10, 11, 31, 26, 27, 28, 29]
## Shift Register
# Data in
S_DATA = 12
# Storage
S_RCLK = 13
# Clock
S_SRCLK = 14
def setAddr(addr, enableOutput):
##Set OE on EEPROM - Active Low
wiringpi.pinMode(E_OE, OUTPUT)
wiringpi.digitalWrite(E_OE, enableOutput)
##Shift data - Data, Clock, MSBFIRST, ADDR
wiringpi.shiftOut(S_DATA, S_SRCLK, 1, (addr >> 8))
wiringpi.shiftOut(S_DATA, S_SRCLK, 1, (addr & 255))
##Save data to storage register
time.sleep(0.01)
wiringpi.digitalWrite(S_RCLK, 0)
time.sleep(0.01)
wiringpi.digitalWrite(S_RCLK, 1)
time.sleep(0.01)
wiringpi.digitalWrite(S_RCLK, 0)
time.sleep(0.01)
def read(addr):
setAddr(int(addr), 0)
for pin in E_DATA:
wiringpi.pinMode(pin, INPUT)
data = 0
for pin in reversed(E_DATA):
data = (data << 1) + wiringpi.digitalRead(pin)
time.sleep(0.02)
return data
def write(addr, data_input):
setAddr(int(addr), 1)
data = int(data_input)
for pin in E_DATA:
wiringpi.pinMode(pin, OUTPUT)
for pin in E_DATA:
wiringpi.digitalWrite(pin, data & 1)
data = data >> 1
time.sleep(0.02)
wiringpi.digitalWrite(E_WE, 0)
time.sleep(0.01)
wiringpi.digitalWrite(E_WE, 1)
time.sleep(0.02)
def printEE(sectors=1):
for sector in range(int(sectors)):
from_sector = 256 * sector
to_sector = 256 * (sector + 1)
print("Sector:", from_sector, "to", to_sector)
for base in range(256 * sector, 256 * (sector + 1), 16):
data = [0] * 16
for offset in range(16):
data[offset] = read(base + offset)
buf = (
"%03x: %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x"
% (
base,
data[0],
data[1],
data[2],
data[3],
data[4],
data[5],
data[6],
data[7],
data[8],
data[9],
data[10],
data[11],
data[12],
data[13],
data[14],
data[15],
)
)
print(buf)
def multiplexed():
digits = [0x7E, 0x30, 0x6D, 0x79, 0x33, 0x5B, 0x5F, 0x70, 0x7F, 0x7B]
print("Ones place")
for i in range(256):
write(i, digits[i % 10])
print("Tens place")
for i in range(256):
write(i + 256, digits[(i // 10) % 10])
print("Hundreds place")
for i in range(256):
write(i + 512, digits[(i // 100) % 10])
print("Sign place")
for i in range(256):
write(i + 768, 0)
print("Ones place - two complenet")
for i in range(-128, 128):
write(i + 128 + 1024, digits[abs(i) % 10])
print("Tens place - two complenet")
for i in range(-128, 128):
write(i + 128 + 1280, digits[abs(i // 10) % 10])
print("Hundreds place- two complenet")
for i in range(-128, 128):
write(i + 128 + 1536, digits[abs(i // 100) % 10])
print("Sign place - two complenet")
for i in range(-128, 128):
if i < 0:
write(i + 128 + 1792, 0x01)
else:
write(i + 128 + 1792, 0x00)
def ask_instructions():
begin_instructions = [
inquirer.List(
"begin",
message="EEPROM Programmer",
choices=["Predefined", "Read", "Write", "Erase", "Quit"],
),
]
instructions = inquirer.prompt(begin_instructions)
begin = instructions["begin"]
if begin == "Predefined":
multiplexed()
elif begin == "Read":
ask_read_instructions()
elif begin == "Write":
ask_write_instructions()
elif begin == "Erase":
print("Erasing...")
for addr in range(2048):
write(addr, 0xFF)
print("done...")
elif begin == "Quit":
sys.exit("\nBye!")
# match instructions["begin"]:
# case "Predefined":
# multiplexed()
# case "Read":
# ask_read_instructions()
# case "Write":
# ask_write_instructions()
# case "Erase":
# print("Erasing...")
# for addr in range(2048):
# write(addr, 0xFF)
# print("done...")
# case "Quit":
# sys.exit("\nBye!")
def ask_read_instructions():
picking_read = [
inquirer.List(
"picking_read",
message="Reading",
choices=["Read address", "Read sector", "Read All", "Back"],
),
]
asking_addr = [inquirer.Text("addr", message="What address?")]
asking_sectors = [
inquirer.Text("sectors", message="How many sectors of 256? (8 is 2048)")
]
read_instructions = inquirer.prompt(picking_read)
read_picking = read_instructions["picking_read"]
if read_picking == "Read address":
read_addr_answer = inquirer.prompt(asking_addr)
print(
"Data for",
read_addr_answer["addr"],
"-",
read(read_addr_answer["addr"]),
)
print("done...")
elif read_picking == "Read sector":
read_sector_answer = inquirer.prompt(asking_sectors)
printEE(
1 if read_sector_answer["sectors"] == "" else read_sector_answer["sectors"]
)
print("done...")
elif read_picking == "Read All":
print("Reading EEPROM....")
printEE(8)
print("done...")
elif read_picking == "Back":
ask_instructions()
# match read_instructions["picking_read"]:
# case "Read address":
# read_addr_answer = inquirer.prompt(asking_addr)
# print(
# "Data for",
# read_addr_answer["addr"],
# "-",
# read(read_addr_answer["addr"]),
# )
# print("done...")
# case "Read sector":
# read_sector_answer = inquirer.prompt(asking_sectors)
# printEE(read_sector_answer["sectors"])
# print("done...")
# case "Read All":
# print("Reading EEPROM....")
# printEE(8)
# print("done...")
# case "Back":
# ask_instructions()
def ask_write_instructions():
picking_write = [
inquirer.List(
"picking_write",
message="Writing",
choices=["Predefined data", "Write custom data", "Back"],
),
]
asking_to_write = [
inquirer.Text("addr", message="What address?"),
inquirer.Text("data", message="What data?"),
]
write_instructions = inquirer.prompt(picking_write)
write_picking = write_instructions["picking_write"]
if write_picking == "Predefined data":
print("Writing predefined data...")
for addr, data in enumerate(CUSTOM_DATA):
write(addr, data)
print("done...")
elif write_picking == "Write custom data":
write_answer = inquirer.prompt(asking_to_write)
print("Writing to", write_answer["addr"], "data", write_answer["data"])
write(write_answer["addr"], write_answer["data"])
print("done...")
elif write_picking == "Back":
ask_instructions()
# match write_instructions["picking_write"]:
# case "Predefined data":
# print("Writing predefined data...")
# for addr, data in enumerate(CUSTOM_DATA):
# write(addr, data)
# print("done...")
# case "Write custom data":
# write_answer = inquirer.prompt(asking_to_write)
# print("Writing to", write_answer["addr"], "data", write_answer["data"])
# write(write_answer["addr"], write_answer["data"])
# print("done...")
# case "Back":
# ask_instructions()
def init():
wiringpi.wiringPiSetup()
wiringpi.pinMode(S_DATA, OUTPUT)
wiringpi.pinMode(S_SRCLK, OUTPUT)
wiringpi.pinMode(S_RCLK, OUTPUT)
wiringpi.pinMode(E_WE, OUTPUT)
wiringpi.digitalWrite(E_WE, 1)
ask_instructions()
init()